@inproceedings{oai:jaxa.repo.nii.ac.jp:00005513, author = {籾山, 弘行 and 鈴木, 祥太 and 田中, 康寛 and 高田, 達雄 and Momiyama, Hiroyuki and Suzuki, Shota and Tanaka, Yasuhiro and Takada, Tatsuo}, book = {宇宙航空研究開発機構特別資料: 第4回宇宙環境シンポジウム講演論文集, JAXA Special Publication: Proceedings of the 4th Spacecraft Environment Symposium}, month = {Mar}, note = {The purpose of this research work is to develop a small size measurement system to observe the surface charge distribution on insulator in vacuum chamber for space environmental test. Recently, a lot of satellites many purposes like a telecommunication, a weather report are being launched. These satellites are flying in a very severe space environment where the high energy radiations are scattered from the sun. In this environment, electrical charging phenomenon occurs on the insulation of spacecraft surface and electrical discharge or dielectric breakdown occurs by the high electric field. Therefore devices in spacecraft have a risk of failure. So we need to find out a mechanism for the occurrence of surface discharge on insulation and a best insulating materials for space conditions. Until now, my senior at our laboratory has made a measuring system of surface charging on insulation using the BSO (Bismuth Silicon Oxide) crystal has Pockels effect. The measuring system has been used the observation of surface discharging on insulation under conditions of non-destructive and non-contact. However this measuring system is large size and the techniques for setting an optical axis is hard. So it was difficult to apply the measuring system to the space environment simulator of small vacuum chamber. So we need to make a small size measurement system for surface discharging observation. By using a plate type light source of LED (Light Emitting Diode) and changing a optical type, the system area can be reduced 200 x 150 mm from 1,200 x 700 mm. Then we researched surface charging on BSO crystal and Kapton film, by using the small system. Then we researched measuring accuracy of the small system., 資料番号: AA0063997024, レポート番号: JAXA-SP-07-030}, pages = {137--140}, publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)}, title = {小型表面帯電分布計測システムの開発}, volume = {JAXA-SP-07-030}, year = {2008} }